code: def test_out_of_range(self, Source):
      source = Source()
      match = r"No srtm tile found for those coordinates\."
      with pytest.raises(ValueError, match=match):
          source.single_tile(-25, 50)
  
file_path: cartopy/lib/cartopy/tests/io/test_srtm.py
imports: import numpy
  from numpy.testing import assert_array_equal
  import pytest
  import cartopy.crs
  import cartopy.io.srtm
  from .test_downloaders import download_to_temp
label_desc: Use image node_id 1 for calling the TestSRTMSource__single_tile obj's underlying member method code with example usage: obj.test_out_of_range(Source) without return types